The process with Meth Test NZ begins with a thorough inspection conducted by certified professionals who carefully examine your property for any signs of meth use or contamination. Using advanced technology, Meth Test NZ accurately tests various areas of your property, including walls, ceilings, and ventilation systems, to identify meth residues. The process with Meth Test NZ begins with a thorough inspection conducted by certified professionals who carefully examine your property for any signs of meth use or contamination. Using advanced technology, Meth Test NZ accurately tests various areas of your property, including walls, ceilings, and ventilation systems, to identify meth residues.